If one or more of the following symptoms are present, please seek medical attention immediately.

• Headache
• Memory loss
• Persistent difficulty in concentrating
• Feeling sluggish, hazy, or slower in thinking
• Emotional changes such as feeling irritable, sad, nervous, or more emotional than usual
• Nausea, vomiting, dizziness, and balance issues
• Blurry or double vision
• Sensitivity to light or noise
• Sleep disturbance